Commitments and Contingencies (Details)	3 Months Ended	9 Months Ended	12 Months Ended											9 Months Ended
	Jun. 30, 2010 USD ($)	Sep. 30, 2012 USD ($)	Dec. 31, 2011 USD ($)	Oct. 15, 2012 USD ($)	Mar. 12, 2012 BRL	Nov. 20, 2009 USD ($)	Dec. 31, 2011 Domestic Line of Credit [Member] USD ($)	Sep. 30, 2012 Foreign Line of Credit [Member] USD ($)	Dec. 31, 2011 Foreign Line of Credit [Member] USD ($)	Sep. 30, 2012 Brazil [Member] USD ($)	Dec. 31, 2011 Brazil [Member] USD ($)	Sep. 30, 2012 Europe [Member] USD ($)	Sep. 30, 2012 Letter of Credit [Member] Pnc Bank [Member] USD ($)	Sep. 30, 2012 Segment, Continuing Operations [Member] USD ($)	Sep. 30, 2012 Segment, Discontinued Operations [Member] USD ($)	Sep. 30, 2012 Minimum [Member]	Sep. 30, 2012 Maximum [Member]
Commitments and Contingencies (Additional Textual) [Abstract]
Discounted receivables sold with limited recourse										$ 14,200,000	$ 10,100,000	$ 0
Discount rate										6.10%	4.70%
Noncancelable purchase commitments		24,200,000	13,700,000
Litigation Settlement, Expense	7,000,000
Outstanding letters of credit							3,500,000	7,700,000	9,500,000				3,400,000
Notice and administrative costs	250,000
Legal settlement reimbursement received from directors and officers insurance policy		1,200,000
Amount in controversy					1,000,000
Payments by other parties		13,500,000
Environmental remediation		2,500,000	3,600,000
Remaining estimated costs associated with remediation activities		1,100,000
Environmental Investigation Efforts		6 months
Term of Remediation Cost Cap insurance		30 years														9 months	12 months
Remediation Cost Cap insurance		100,000,000
Environmental Site Liability insurance		20,000,000
Snowstorm sought damanges						27,000,000
Mutual releases in exchange for payment		1,700,000												1,300,000	400,000
Adjusted notice and administrative costs				$ 150,000